Adam, though made of dust, was made, as President Young said, of the dust of another planet than this.

George Q. Cannon, June 23, 1889, Apostle Abraham H. Cannon
records a discussion he had with his father George Q. Cannon.
The whole conversation was on how the Father (Adam) begat Jesus

There is one thing that I am told is practiced to some extent among us, and I say to you that where it is practiced and not thoroughly repented of the curse of God will follow it. I refer to the practice of preventing the birth of children. I want to lift my voice in solemn warning against this, and I say to you that the woman who practices such devilish arts, or the man who consents to them, will be cursed of God. Such persons will be cursed in their bodies, cursed in their minds, cursed in their property, cursed in their offspring. God will wipe them out from the midst of this people and nation. Remember it. Mothers, teach this to your daughters, for I tell you it is true. I need not pronounce any curse, whatever my authority may be, but I say to you that women who take this course, and men who consent to it, will be cursed of God Almighty, and it will rest upon them until their generation shall be blotted out, and their name shall be lost from the midst of the Saints of God, unless, as I have said, there is deep, thorough and heartfelt repentance.